EP 3612683 B1 20230308 - LOADER LIFT ARM ASSEMBLY FOR A POWER MACHINE
Title (en)
LOADER LIFT ARM ASSEMBLY FOR A POWER MACHINE
Title (de)
LADERHUBARMANORDNUNG FÜR EINE KRAFTMASCHINE
Title (fr)
ENSEMBLE BRAS DE LEVAGE DE CHARGEUR POUR MACHINE ÉLECTRIQUE
Publication
Application
Priority
- US 201762487153 P 20170419
- US 2018028290 W 20180419
Abstract (en)
[origin: US2018305889A1] Disclosed embodiments include power machines and related structures of lift arms, implement carriers, follower links, and driver links which improve manufacturability, reduce component failures, and improve power machine design and functionality. In some embodiments, lift arm structures include cast lower lift arm portions. The cast lower lift arm portions include contoured upper ends which are sleeved onto contoured lower ends of upper lift arm portions to control stress points and to reduce stresses on welds. The follower link structures can include follower links which are configured to be positioned at least partially outside of the lift arm structure to improve rear visibility. The driver link structures can be configured to be laterally overlapping with innermost surfaces on the lift cylinder, but configured such that as the lift arm is raised the laterally overlapping portions are moved above the innermost surfaces of the lift cylinder.
IPC 8 full level
E02F 3/627 (2006.01); A01B 1/00 (2006.01); A01B 63/24 (2006.01); B22D 25/00 (2006.01); B22D 25/02 (2006.01); E02F 3/34 (2006.01); E02F 3/38 (2006.01)
CPC (source: CN EP KR US)
A01B 1/00 (2013.01 - KR); A01B 63/24 (2013.01 - KR); B22D 25/00 (2013.01 - EP US); B22D 25/02 (2013.01 - EP KR US); E02F 3/3414 (2013.01 - EP KR US); E02F 3/3686 (2013.01 - KR US); E02F 3/38 (2013.01 - CN EP KR US); E02F 3/382 (2013.01 - KR US); E02F 3/422 (2013.01 - CN KR US); E02F 3/43 (2013.01 - CN); E02F 3/627 (2013.01 - EP KR US); E02F 9/006 (2013.01 - CN); E02F 9/2037 (2013.01 - CN); A01B 63/24 (2013.01 - EP US)
Citation (examination)
WO 2008134820 A1 20081113 - CHALLENGE IMPLEMENTS HOLDINGS [AU], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10934681 B2 20210302; US 2018305889 A1 20181025; CA 3060556 A1 20181025; CN 110546328 A 20191206; CN 110546328 B 20220517; CN 114892740 A 20220812; EP 3612683 A1 20200226; EP 3612683 B1 20230308; EP 4202130 A1 20230628; ES 2944542 T3 20230622; KR 102575850 B1 20230906; KR 102647493 B1 20240313; KR 20190140942 A 20191220; KR 20230129625 A 20230908; US 11732436 B2 20230822; US 2021180286 A1 20210617; US 2021180287 A1 20210617; WO 2018195268 A1 20181025
DOCDB simple family (application)
US 201815957170 A 20180419; CA 3060556 A 20180419; CN 201880025702 A 20180419; CN 202210469364 A 20180419; EP 18723164 A 20180419; EP 23153382 A 20180419; ES 18723164 T 20180419; KR 20197032286 A 20180419; KR 20237029660 A 20180419; US 2018028290 W 20180419; US 202117185150 A 20210225; US 202117185190 A 20210225